The coefficient in 665 x 104 is
We will use Scientific Notation to answer this question.
The coefficient in 6.65 * 104 is 6.65
The given number 6.65 * 104 is represented in Scientific Notation.
Scientific notation allows us to express very large or very small numbers in a convenient way. This notation uses a coefficient (a number between 1 and 10) and a power of ten sufficient for the actual number.
Here, the coefficient is 6.65 and the exponent is 104.